499981349 has 12 divisors (see below), whose sum is σ = 583216704. Its totient is φ = 427372344.

The previous prime is 499981343. The next prime is 499981351. The reversal of 499981349 is 943189994.

It is not a de Polignac number, because 499981349 - 2¹⁶ = 499915813 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 499981294 and 499981303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499981343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4082 + ... + 31884.

It is an arithmetic number, because the mean of its divisors is an integer number (48601392).

Almost surely, 2^499981349 is an apocalyptic number.

499981349 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

499981349 is a deficient number, since it is larger than the sum of its proper divisors (83235355).

499981349 is a wasteful number, since it uses less digits than its factorization.

499981349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28184 (or 28177 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 56.

The square root of 499981349 is about 22360.2627220702. The cubic root of 499981349 is about 793.6906569890.

The spelling of 499981349 in words is "four hundred ninety-nine million, nine hundred eighty-one thousand, three hundred forty-nine".